The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 2002
Filed:
Dec. 22, 1998
Mark Rapaich, Westfield, IA (US);
Gateway, Inc., North Sioux City, SD (US);
Abstract
A system has video output connections capable of connecting to different display devices. The system has input connections capable of receiving image signal from multiple sources. A table of gamma values is indexed by both the display type and image source type. A software or hardware module applies a gamma correction from the table to the received video to transform it to have a gamma consistent with that of the display device. In a further embodiment, the images are encoded with a gamma identifier which is used to index into the table of system gammas. A video card that detects video source and display is also described. The video card utilizes a table of gamma values indexed by video source and display type and operating mode. Images are then corrected by the card to display properly on the display.